Had the same problem with the gas tank on my crawler. I found this company the deals in gas tank coatings and it worked great. They shipped it to me really fast and ran me about $50.00. They give you a cleaner a primer and epoxy. Read the direction and do exactly what they say and I think you'll be very happy with the results. Oh by the way when I used there cleaner which is the first step I threw in the tank a small hand full of metal nuts and washers which helped clean the inside. I'm very happy with the way my tank came out. The name of the company is KBS Coatings just go to WWW.KBS-COATINGS.COM or the phone number is 800-304-6740. Good luck and I hope this gives you some help.
Sigy
